Because the greater are the more complicated and of course it more spends a lot of your money. We strongly recommend to you that you should consider everything that your pool is built in accordance with what will you expect. Below we share with you a little bit about some kind of a private swimming pool which is usually built at home backyard. This type of swimming pool is made of concrete materials popular they also finish with plaster (a mixture of cement with marble of sand). This type of pool is very popular in the United States. And a difference of gunite pools is poured from the manufacturing technique. The manufacturing process by spraying gunite material on the framework of concrete poured while longer because the manufacturing process using conventional means. Swimming Pool.